1000A Current Testing and Quick Infrared Temperature Spot Checks

The rugged Extech EX840 1000A AC/DC CAT IV clamp meter is designed to deliver safety and versatility — without compromising performance or innovation. You can take the EX840 on the job to leverage its advanced meter functions including True RMS AC/DC current and voltage, resistance, capacitance, frequency, infrared and contact temperature, diode-test, and continuity check. Use the EX840's fast-responding peak hold function to capture inrush currents and transients.

Functionality Overview

The EX840 amp clamp has a CAT IV-600-volt, CAT III-1000V overvoltage safety rating and is CE and ETL approved. In addition to being able to take temperature measurements using the Type K wire probe, the EX840 enables users to take safe, point-and-shoot, non-contact temperature measurements with an integrated infrared (IR) thermometer that packs a useful 8:1 distance ratio. That means that at a safe distance of 8 inches users are getting a temperature reading focused on a tight, one-inch spot. The built-in IR thermometer makes it easier for users to identify overheating motors, stressed bearings, overloaded electrical panels, abnormal vent temperatures, and other components from a distance — and without an additional meter.

Other Features

The bright 4-digit, 4,000 count backlit display is complemented by several one-button functions including Data Hold, Min/Max, and selectable auto- or manual-ranging. The large 1.7-inch (43mm) jaw opening handles conductors up to 750 MCM or multiple conductors such as two 500 MCM.

CAT IV test leads

8-piece professional test lead set

9-volt battery

Type K temperature probe

Pouch case

User manual

One-year limited warranty on parts and labor

NIST certification is availablefor this product.

Specifications

Range

Basic Accuracy

AC Current

0.1 to 1000A

±2.8%

DC Current

0.1 to 1000A

±2.8%

AC Voltage

0.1mV to 1000V

±1.5%

DC Voltage

0.1mV to 1000V

±2.8%

Resistance

0.1 to 40MΩ

±1.5%

Capacitance

0.001nF to 40,000µF

±3.0%

Frequency

0.001kHz to 4kHz

±1.5%

IR Temperature

-58 to 518ºF (-50 to 270ºC)

±2.0% rdg or ±4ºF/±2ºC

Type K Temperature

-4 to 1400ºF (-20 to 760ºC)

±(3%rdg+9°F/5ºC)

Continuity

YES

Inrush

YES

Diode

YES

Dimensions

10.6x4.3x2" (270x110x50mm)

Weight

13.6oz (386g)

Extech EX840 Product Specifications Summary:(for full specs please see the full specs tab or the data sheet)